The attack on a Shiite shrine in Samarra set off a spasm of sectarian violence in Iraq. Some Sunni Arab groups suspended talks with Shiite and Kurdish parties and none of this bodes well for U.S. hopes of a new government that represents all sides.

Guests:

Bobby Ghosh, senior Baghdad correspondent for Time magazine

Adeed Dawisha, political science professor at Miami University of Ohio; author, Arab Nationalism in the Twentieth Century: From Triumph to Dispair

Stephen Biddle, senior fellow for Defense Policy at the Council on Foreign Relations